You know the game, six degrees of separation? It refers to the idea that, if a person is one step away from each person they know and two steps away from each person who is known by one of the people they know, then everyone is at most six steps away from any other person on Earth. Initially this was a mathematical theory, that sprouted the game as an illustration. The most popular variant of this game is the Six Degrees of Kevin Bacon, where you have to link a given celebrity and Kevin Bacon in less than six steps.

A similar theory goes that, since every Wikipedia article links to several other Wikipedia articles, you can get from any article to any other article merely by following the links.

The Sexual Intercourse game is as follows. One player posts a Wikipedia article. The other players have a set amount of time (say, two days, to account for time zones and people's schedules) to find the shortest path between that article and the article on sexual intercourse. Each player posts his/her chain of links that led them from the initial article to sexual intercourse. The player to get to sexual intercourse in the smallest number of steps wins, and posts the next article.

Once it hit united states constitution I tried to find my way over to Bill Clinton's page (and succeeded, but where it said he had committed sexual intercourse with that 22 year old, it didn't link to the article). Also says Sexual Intercourse multiple times in the adolescent sexuality page, but none of the mentions I saw actually link to the page.